Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and view other reports go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html

Study Counts

Type	Study_count
Total_Studies	701
interventional	623
Observational	75
Registry	3

Studies over Time by Start Date

```

Interventional Trials

Intervention Type

intervention_type	Study_Count
Drug\|placebo	274
Drug	194
Biological\|placebo	40
Biological	23
Other	20
Procedure	11
Device	9
Dietary Supplement\|placebo	8
Device\|placebo	7
Dietary Supplement	5
Drug\|Other	5
Biological\|Drug	4
Biological\|Drug\|placebo	3
Biological\|Other	3
Drug\|Procedure	3
Other\|placebo	3
Diagnostic Test	2
Drug\|Other\|placebo	2
Behavioral\|Device\|placebo\|Procedure	1
Biological\|Procedure	1
Device\|Drug	1
Device\|Drug\|placebo	1
Diagnostic Test\|Other	1
Dietary Supplement\|Drug\|placebo	1
Other\|Procedure	1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Yearly studies for each intervention by start date

Studies by Country

Country	Study_Count
United States	171
NA	140
Canada	39
Germany	35
Austria	19
Korea, Republic of	19
United Kingdom	18
China	16
Japan	15
Spain	12
Sweden	12
Thailand	12
Italy	11
Denmark	8
Taiwan	7
United States\|Canada	7
France	6
Poland	6
Switzerland	5
NA	4
Australia	4
Belgium	4
Brazil	4
Finland	3
Norway	3
Hong Kong	2
India	2
Netherlands	2
Russian Federation	2
Singapore	2
Argentina\|Australia\|Korea, Republic of\|Russian Federation	1
Austria\|Belgium\|Germany\|Netherlands\|Spain	1
Belarus\|Russian Federation	1
Belgium\|Germany\|Netherlands\|Poland	1
Belgium\|Netherlands	1
Bulgaria	1
Canada\|United States\|Argentina\|Chile\|France\|Italy\|Peru	1
Croatia	1
Czech Republic\|Denmark\|Estonia\|Finland\|France\|Germany\|Latvia\|Lithuania\|Poland\|Slovakia\|Sweden	1
Czech Republic\|Germany\|Poland	1
Denmark\|Finland\|France\|Germany\|Lithuania\|Poland\|Russian Federation\|Sweden	1
Denmark\|Finland\|Germany\|Lithuania\|Norway\|Poland\|Slovakia\|Sweden	1
Estonia\|Latvia\|Lithuania\|Netherlands\|Russian Federation\|Sweden	1
Germany\|Lithuania\|Poland	1
Germany\|Poland	1
Germany\|United Kingdom	1
Hungary	1
Hungary\|Poland\|United Kingdom	1
Hungary\|Spain	1
Mexico	1
Netherlands\|United Kingdom	1
Pakistan	1
Philippines	1
Poland\|Denmark\|France\|Latvia\|Lithuania\|Sweden\|Switzerland	1
Spain\|Sweden	1
Sweden\|Ukraine	1
United States\|Argentina\|Chile\|Finland\|Italy\|Mexico\|Slovakia	1
United States\|Australia\|Canada\|Estonia\|Germany\|Latvia\|Lithuania\|New Zealand\|Russian Federation	1
United States\|Canada\|Estonia\|Germany\|Hungary\|Russian Federation\|Slovakia	1
United States\|Canada\|Estonia\|Poland	1
United States\|France	1
United States\|Poland\|Russian Federation\|Spain	1
Vietnam	1

Sites per Study

Site_count	Study_Count
1	454
2	27
3	10
4	13
5	8
6	11
7	11
8	5
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	1
17	1
18	1
19	1
20	1
22	2
23	3
24	3
25	1
26	3
28	3
29	1
30	3
31	4
32	1
33	1
34	3
35	3
36	1
37	2
38	1
39	3
41	2
42	2
43	3
44	1
45	3
49	1
56	1
59	1
60	2
63	1
65	1
66	2
71	1
74	2
80	1
121	1

Phase

Phase	Study_Count
Phase 3	202
Phase 4	129
Phase 2	122
N/A	79
Phase 1	62
Phase 1/Phase 2	15
Phase 2/Phase 3	12
Early Phase 1	2

Number of Arms

Number_of_Arms	Count_of_Studies
1	63
2	279
3	111
4	57
5	21
6	9
7	2
8	2
16	1
NA	78

Enrollment Metrics by Phase

Measure	Early.Phase.1	N.A	Phase.1	Phase.1.Phase.2	Phase.2	Phase.2.Phase.3	Phase.3	Phase.4
Min.	21.00	6.0000	6.00000	12.0000	18.0000	15.00	1.0000	7.0000
1st Qu.	27.25	24.0000	24.50000	32.0000	46.2500	39.50	127.0000	41.0000
Median	33.50	49.0000	34.00000	48.0000	87.0000	101.00	351.0000	100.0000
Mean	33.50	115.8846	70.27419	115.7333	197.4016	207.00	465.9204	200.4651
3rd Qu.	39.75	71.5000	53.25000	81.0000	265.7500	209.75	634.0000	299.0000
Max.	46.00	2701.0000	1307.00000	800.0000	1111.0000	784.00	2388.0000	1260.0000

Trial Group Type

group_type	Group_Count
Experimental	648
Placebo Comparator	363
Active Comparator	328
NA	78
Other	25
No Intervention	13
Sham Comparator	10

Intervention Model

intervention_model	Study_Count
Parallel Assignment	418
Crossover Assignment	124
Single Group Assignment	68
Factorial Assignment	7
NA	4
Sequential Assignment	2

Primary Purpose

primary_purpose	Study_Count
Treatment	508
NA	36
Basic Science	25
Prevention	19
Diagnostic	16
Other	11
Supportive Care	4
Health Services Research	2
Screening	2

Observational Studies

Studies by Country

Country	Study_Count
NA	18
United States	12
Germany	10
Italy	5
France	4
Canada	3
Korea, Republic of	3
Israel	2
Poland	2
Spain	2
Thailand	2
United Kingdom	2
Austria	1
Belgium	1
Denmark	1
Hong Kong	1
Indonesia\|Singapore	1
Japan	1
Lithuania	1
Singapore	1
Switzerland	1
Turkey	1

Sites per Study

Site_count	Study_Count
1	68
2	3
3	1
5	1
10	1
15	1

Enrollment Metrics

Measure	Observational
Min	1.000
1st Qu	50.000
Median	140.500
Mean	2245.068
3rd Qu	630.000
Max	100000.000

Observation Model

observational_model	Study_Count
Cohort	28
Case-Only	10
NA	10
Case-Control	9
Other	7
Case Control	5
Ecologic or Community	5
Natural History	1

Time Perspective

time_perspective	Study_Count
Prospective	48
Cross-Sectional	9
Retrospective	9
NA	6
Cross-Sectional, Prospective	1
Longitudinal, Prospective	1
Other	1

Registries

Studies by Country

Country	Study_Count
Austria	1
Thailand	1
United States	1

Sites per Study

Site_count	Study_Count
1	2
46	1

Enrollment Metrics

Measure	Registries
Min	32
1st Qu	266
Median	500
Mean	452
3rd Qu	662
Max	824

Registry Model

observational_model	Study_Count
Cohort	3

Time Perspective

time_perspective	Study_Count
Prospective	3

Follow-up

target_duration	Study_Count
6 Months	2
2 Years	1

Overview of Studies

Interventional Trials

#If less then 500 trials

Observational Studiess

#If less then 500 studies

nct_id	brief_title	link	overall_status	source	primary_completion_date
NCT03363698	MCT and Capsaicin Provocation Challenge in Diagnosis of Chronic Cough	https://ClinicalTrials.gov/show/NCT03363698	Recruiting	Medical University of Warsaw	2021-09-30
NCT03324100	Integrative Omics Approach to Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT03324100	Active, not recruiting	Medical University of Graz	2020-03-01
NCT03286049	Short and Mid-term Repeatability of Active Anterior Rhinomanometry (AAR) Measurements in Paediatric Age	https://ClinicalTrials.gov/show/NCT03286049	Completed	Istituto per la Ricerca e l’Innovazione Biomedica	2018-07-31
NCT03276416	RAPP-children, Rhinitis & Asthma in Patient Perspective: Development and Validation of a Questionnaire for Quality of Life Evaluation in Children With Asthma and Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT03276416	Completed	Istituto per la Ricerca e l’Innovazione Biomedica	2019-07-31
NCT03251157	Dietary Intake in Adults From the GA2LEN Folow-up Survey	https://ClinicalTrials.gov/show/NCT03251157	Completed	Johns Hopkins Bloomberg School of Public Health	2010-12-31
NCT03112252	App Based Study on the Symptoms of Patients With Allergic Rhinitis in the Pollen Season	https://ClinicalTrials.gov/show/NCT03112252	Completed	University Hospital of Cologne	2017-08-31
NCT03101618	Animal Allergy in Korean Pet Owners, Pet-related Industry Workers, and Laboratory Animal Reseachers	https://ClinicalTrials.gov/show/NCT03101618	Completed	Gachon University Gil Medical Center	2016-11-27
NCT03097432	Non-interventional Study to Assess the Tolerability, the Safety Profile and the Adherence of Different Up-dosing Schemes for a Sublingual Immunotherapy Treatment	https://ClinicalTrials.gov/show/NCT03097432	Completed	University Hospital of Cologne	2017-10-19
NCT03070288	RGB(Red- Green-Blue) Measurement of the Nasal Mucosal Image	https://ClinicalTrials.gov/show/NCT03070288	Completed	Bezmialem Vakif University	2018-03-01
NCT03014661	Untersuchung Zur Erfassung Und Kontrolle Der LebensqualitÃ¤t Unter Einer Therapie Mit Pollinex Quattro Bei Heuschnupfen	https://ClinicalTrials.gov/show/NCT03014661	Completed	Saarland University	2015-12-31
NCT02866864	Animal Allergy in Korean Veterinary Researcher	https://ClinicalTrials.gov/show/NCT02866864	Completed	Gachon University Gil Medical Center	2016-08-26
NCT02856282	Drug Utilization Study for Pirinase Hayfever Relief	https://ClinicalTrials.gov/show/NCT02856282	Completed	GlaxoSmithKline	2018-03-31
NCT02745418	The Role of Filaggrin Mutations and Sensitization Pathways in Allergic Rhinitis and Peanut Allergy	https://ClinicalTrials.gov/show/NCT02745418	Recruiting	Queen’s University	2019-08-31
NCT02636933	Longitudinal Observational Study in Prematurely Born Preschool Children: Assessment of Lung Function Parameters	https://ClinicalTrials.gov/show/NCT02636933	Recruiting	Istituto per la Ricerca e l’Innovazione Biomedica	2020-12-31
NCT02609581	Tolerability of SLIT With LAISÂ® Mites Allergoid Tablets	https://ClinicalTrials.gov/show/NCT02609581	Completed	University Hospital of Cologne	2017-02-28
NCT02409550	CARATKids: Italian Validation of Asthma and Allergic Rhinitis Control Test in Children	https://ClinicalTrials.gov/show/NCT02409550	Completed	Istituto per la Ricerca e l’Innovazione Biomedica	2016-07-31
NCT02380495	“Studio NaVA” - National Study on Quality of Life in Adolescents Affected by Allergic Rhinitis With or Without Asthma	https://ClinicalTrials.gov/show/NCT02380495	Completed	Istituto per la Ricerca e l’Innovazione Biomedica	2017-03-31
NCT02295969	Observational Study of OralairÂ® in Children 5-9 Years With Grass-pollen-induced Allergic Rhinitis With/Without Conjunctivitis	https://ClinicalTrials.gov/show/NCT02295969	Completed	Stallergenes Greer	2017-07-03
NCT02238236	Post Marketing Surveillance of AlesionÂ® in Japanese Paediatric Patients With Allergic Rhinitis, Eczema/Dermatitis, Urticaria and Pruritus	https://ClinicalTrials.gov/show/NCT02238236	Completed	Boehringer Ingelheim	2008-04-30
NCT02238223	Postmarketing Surveillance to Investigate the Safety and Efficacy Information of AlesionÂ® Tablet	https://ClinicalTrials.gov/show/NCT02238223	Completed	Boehringer Ingelheim	2006-05-31
NCT02230475	Systemic Mechanisms in Allergic Rhinitis: Assessment of Metabolomic Outcomes.	https://ClinicalTrials.gov/show/NCT02230475	Completed	Queen’s University	2014-09-30
NCT01318954	The Effect of Allergen Immunotherapy on Exhaled Nitric Oxide in Adult Patients With Asthma and Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT01318954	Completed	Rohr and Columbo Asthma, Allergy and Immunology Specialists, P.C.	2011-06-30
NCT02133053	Application of Ectoin Allergy Nasal Spray in Comparison to Beclomethasone Nasal Spray	https://ClinicalTrials.gov/show/NCT02133053	Completed	Bitop AG	2011-07-31
NCT02131051	Application of Ectoine Containing Nasal Spray and Eye Drops in Patients With Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT02131051	Completed	Bitop AG	2010-09-30
NCT02131038	Application of Ectoine Nasal Spray in Comparison With Cromolyn Sodium Containing Nasal Spray in Patients With Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT02131038	Completed	Bitop AG	2009-09-30
NCT01295255	Interaction Effect of Asthma and Aeroallergen Category on the Psychological Status in Allergic Rhinitis Patients	https://ClinicalTrials.gov/show/NCT01295255	Completed	Beijing Tongren Hospital	2009-10-31
NCT02020902	Post Marketing Surveillance for Contac Bien Z in Japan	https://ClinicalTrials.gov/show/NCT02020902	Completed	GlaxoSmithKline	2016-01-31
NCT01953471	Prospective Observational Study for Determination of Minimal Clinically Important Difference of Allergic Rhinitis Symptoms Due to Grass Pollen (Equinoxe 2)	https://ClinicalTrials.gov/show/NCT01953471	Completed	Hopital Foch	2011-09-30
NCT01936818	Study Evaluating Nasal Symptoms Induced by a Nasal Allergen Challenge (NAC) To House Dust Mite Allergen	https://ClinicalTrials.gov/show/NCT01936818	Completed	ORA, Inc.	2015-01-31
NCT01897506	Assessing Risk of Food Insecurity Within Households of Children With Food Allergy	https://ClinicalTrials.gov/show/NCT01897506	Completed	Arkansas Children’s Hospital Research Institute	2015-12-31
NCT01854580	Evaluation of an Integrated Care Project	https://ClinicalTrials.gov/show/NCT01854580	Completed	Charite University, Berlin, Germany	2018-12-31
NCT01845051	Is There a Comorbidity Between Migraine and Allergic Rhinitis?	https://ClinicalTrials.gov/show/NCT01845051	Completed	Baskent University	2013-03-31
NCT01777438	Evaluating Symptom Control in in Allergic Rhinitis at Three Years After Starting Immunotherapy	https://ClinicalTrials.gov/show/NCT01777438	Completed	Universitaire Ziekenhuizen Leuven	2013-06-30
NCT01699659	The Efficacy & Safety of the UAS Immunotherapy Protocol	https://ClinicalTrials.gov/show/NCT01699659	Completed	United Allergy Services	2012-09-30
NCT01686048	The Significance of Ambrosia in Allergic Rhinitis and Asthma in Israel	https://ClinicalTrials.gov/show/NCT01686048	Completed	Meir Medical Center	2015-04-30
NCT01686022	Grass Sensitisation and Allergic Rhinitis in Thai Patients	https://ClinicalTrials.gov/show/NCT01686022	Completed	Mahidol University	2015-10-31
NCT01553110	An Observational Study to Evaluate The Relationship of Nasal Mucus Properties and Symptoms	https://ClinicalTrials.gov/show/NCT01553110	Completed	Virginia Commonwealth University	2018-12-31
NCT01549340	Retrospective Record Review of Adults and Children Advised for Allergen Immunotherapy (MK-7243-022)	https://ClinicalTrials.gov/show/NCT01549340	Completed	ALK-AbellÃ³ A/S	2012-05-31
NCT01489293	Inhibitory Receptors in Eosinophils of Atopic Subjects	https://ClinicalTrials.gov/show/NCT01489293	Completed	Meir Medical Center	2013-12-31
NCT01461200	Effects of Allergic Rhinitis on the Nasal/Sinus Microbiome	https://ClinicalTrials.gov/show/NCT01461200	Completed	University of Chicago	2012-01-31
NCT01445262	Drug Use Investigation for XYZALÂ®	https://ClinicalTrials.gov/show/NCT01445262	Completed	GlaxoSmithKline	2013-12-31
NCT04389034	Influence of Specific Immunotherapy With Pollinex Quattro (Tree-/Grass Pollen) on Allergen-specific Immunoglobulin E (IgE) Levels	https://ClinicalTrials.gov/show/NCT04389034	Recruiting	Allergy Therapeutics	2020-10-31
NCT04125888	Impact of AIT on Allergic Rhinitis and Asthma	https://ClinicalTrials.gov/show/NCT04125888	Active, not recruiting	ALK-AbellÃ³ A/S	2020-12-31
NCT04104828	Comparison of Innate Immune Responses Induced by Allergy Immunotherapy (AIT) With Different Adjuvants	https://ClinicalTrials.gov/show/NCT04104828	Recruiting	University of Zurich	2020-03-31
NCT03746860	N.I.S of AIT in Adult Patients With House Dust Mite Allergy in Real Practice in France	https://ClinicalTrials.gov/show/NCT03746860	Recruiting	ALK-AbellÃ³ A/S	2020-05-31
NCT03714945	Study on Association Between Treatment of Allergic Rhinitis and Cognitive Ability in Children	https://ClinicalTrials.gov/show/NCT03714945	Recruiting	Chinese University of Hong Kong	2020-12-31
NCT03599908	Evaluation and Validation of Novel Diagnostic Tool for Allergists (AbioSCOPE)	https://ClinicalTrials.gov/show/NCT03599908	Completed	Centre Hospitalier Universitaire Vaudois	2016-11-14
NCT01199757	A Comparison of Patients on AVAMYS Â® Versus NASONEX (A Trade Mark of Schering Corporation) and FLIXONASE Â® on Key Health Outcome Measures	https://ClinicalTrials.gov/show/NCT01199757	Completed	GlaxoSmithKline	2009-08-01
NCT01192386	Eosinophil Markers and Development of Disease in Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT01192386	Completed	University of Aarhus	2010-05-31
NCT01129765	Home Usability of a Nasal Lavage System in Children	https://ClinicalTrials.gov/show/NCT01129765	Completed	Aardvark Medical Company	2009-08-31
NCT01113697	Genetics of the Early and Late Response to Allergen Challenge	https://ClinicalTrials.gov/show/NCT01113697	Recruiting	University of British Columbia	2020-12-31
NCT01104012	Validation of Proteomic Analyses for Allergic Asthma and Rhinitis	https://ClinicalTrials.gov/show/NCT01104012	Completed	Centre Hospitalier Universitaire de NÄ«mes	2012-10-31
NCT01077609	Flixonase Safety in Patients With Allergic Rhinitis (AR)	https://ClinicalTrials.gov/show/NCT01077609	Completed	GlaxoSmithKline	2010-04-30
NCT01068808	The Development of Allergic Rhinitis in Children Previously Diagnosed as Nonallergic Rhinitis	https://ClinicalTrials.gov/show/NCT01068808	Completed	Mahidol University	2012-06-30
NCT01001130	Regulatory AVAMYS Nasal Spray PMS	https://ClinicalTrials.gov/show/NCT01001130	Completed	GlaxoSmithKline	2014-05-31
NCT00903721	NasonexÂ® Nasal Suspension 50 Î¼g Long-term Designated Drug Use Investigation (Study P05876)	https://ClinicalTrials.gov/show/NCT00903721	Completed	Merck Sharp & Dohme Corp.	2012-10-31
NCT00826189	Influence of Probiotics on Atopy With Focus on Respiratory Allergic Diseases- Follow-up to 7 Years	https://ClinicalTrials.gov/show/NCT00826189	Completed	National University Hospital, Singapore	2013-06-30
NCT00815984	Fractional Exhaled Nitric Oxide (FeNO) Result Prediction Factors in Children With Allergic Diseases	https://ClinicalTrials.gov/show/NCT00815984	Completed	Medical Universtity of Lodz	2010-01-31
NCT01485523	Sensitivity and Specificity of Nasal Provocation Test in Allergic Rhinitis to House Dust Mites	https://ClinicalTrials.gov/show/NCT01485523	Completed	University Hospital, Strasbourg, France	2012-08-31
NCT03821077	Study to Evaluate the Efficacy and Safety of “Allergovac Poliplus” in Polysensitized Patients With Allergic Rhinitis/Rhinoconjunctivitis, With or Without Asthma	https://ClinicalTrials.gov/show/NCT03821077	Active, not recruiting	Roxall Medicina EspaÃ±a S.A	2021-06-30
NCT02844842	Evaluation of Tolerability and Safety of “Allergovac Poliplus” in Polysensitized Patients With Rhinitis or Allergic Rhinoconjunctivitis With or Without Asthma: A Study in Daily Clinical Practice	https://ClinicalTrials.gov/show/NCT02844842	Completed	Roxall Medicina EspaÃ±a S.A	2018-09-06
NCT02579720	Revaccination With PollinexÂ® Quattro	https://ClinicalTrials.gov/show/NCT02579720	Completed	University Hospital of Cologne	2015-10-31
NCT02553590	Tolerability of SLIT With LAISÂ® 2-Tree Allergoid Tablets	https://ClinicalTrials.gov/show/NCT02553590	Completed	University Hospital of Cologne	2015-10-31
NCT04352088	Immune Response Features in Allergic Airway Diseases	https://ClinicalTrials.gov/show/NCT04352088	Recruiting	Lithuanian University of Health Sciences	2022-11-30
NCT00762983	Observation of Use of Claritin (Loratadine) Tablet, RediTabs, and Dry Syrup in Children (Study P05834)(COMPLETED)	https://ClinicalTrials.gov/show/NCT00762983	Completed	Merck Sharp & Dohme Corp.	2009-02-28
NCT00761527	Observation of Side Effects and Effectiveness of Desloratadine (Aerius) Syrup in Filipino Children (Study P05634)	https://ClinicalTrials.gov/show/NCT00761527	Completed	Merck Sharp & Dohme Corp.	2010-05-31
NCT00723736	Safety of Aerius Syrup in Pediatric Patients Aged 1-5 Years Old With Allergic Rhinitis or Chronic Idiopathic Urticaria (Study P04446AM1)(COMPLETED)	https://ClinicalTrials.gov/show/NCT00723736	Completed	Merck Sharp & Dohme Corp.	2008-06-30
NCT00713089	Study of Stool Microbiota in Two Diverse Cohorts of Asian and Its Influence on Allergy Development	https://ClinicalTrials.gov/show/NCT00713089	Completed	National University Hospital, Singapore	2009-11-30
NCT00704769	Response of Desloratadine Syrup in the Relief of Symptoms Associated With Perennial Allergic Rhinitis in Pediatric Patients (Study P04299)	https://ClinicalTrials.gov/show/NCT00704769	Completed	Merck Sharp & Dohme Corp.	2007-12-31
NCT00598780	Evaluation of Safety of Levocetirizine in Routine Clinical Practice-non- Interventional Study	https://ClinicalTrials.gov/show/NCT00598780	Completed	UCB Pharma	2008-09-30
NCT00517946	A Study To Investigate If MRI Scanning Is Effective At Seeing What Hayfever Drugs Do In Nasal Passage.	https://ClinicalTrials.gov/show/NCT00517946	Completed	GlaxoSmithKline	2007-04-30
NCT00405899	Pilot Study of Allergy Immunotherapy and Prevention of Viral Respiratory Infections	https://ClinicalTrials.gov/show/NCT00405899	Completed	West Penn Allegheny Health System	NA
NCT00297843	A Pilot Monocenter Study to Assess Cellular and Soluble Biomarkers in Nasal Secretions	https://ClinicalTrials.gov/show/NCT00297843	Completed	Fraunhofer-Institute of Toxicology and Experimental Medicine	NA
NCT00189449	Effects of Long-Term Treatment With Nasally Inhaled Triamcinolone Acetonide in Children With Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT00189449	Completed	West Penn Allegheny Health System	NA
NCT00011440	Pollutant Altered Allergic Responses	https://ClinicalTrials.gov/show/NCT00011440	Completed	National Institute of Environmental Health Sciences (NIEHS)	NA

Registries

#If less then 500 registries

nct_id	brief_title	link	overall_status	source	primary_completion_date
NCT03127436	Non-interventional Study to Assess the Tolerability and the Safety Profile of SCIT Therapy With AcarovacÂ® Hausstaubmilbe	https://ClinicalTrials.gov/show/NCT03127436	Completed	University Hospital of Cologne	2019-02-14
NCT02000648	Real-life Management and Therapeutic Outcome of Patients With Chronic Rhinitis and Chronic Urticaria in Thailand	https://ClinicalTrials.gov/show/NCT02000648	Completed	Chulalongkorn University	2015-02-28
NCT01632540	Effectiveness of Beclomethasone Dipropionate Nasal Aerosol for Perennial Allergic Rhinitis	https://ClinicalTrials.gov/show/NCT01632540	Completed	Teva Pharmaceutical Industries	2013-12-31

intervention_type	Study_Count
Drug\|placebo	274
Drug	194
Biological\|placebo	40
Biological	23
Other	20
Procedure	11
Device	9
Dietary Supplement\|placebo	8
Device\|placebo	7
Dietary Supplement	5
Drug\|Other	5
Biological\|Drug	4
Biological\|Drug\|placebo	3
Biological\|Other	3
Drug\|Procedure	3
Other\|placebo	3
Diagnostic Test	2
Drug\|Other\|placebo	2
Behavioral\|Device\|placebo\|Procedure	1
Biological\|Procedure	1
Device\|Drug	1
Device\|Drug\|placebo	1
Diagnostic Test\|Other	1
Dietary Supplement\|Drug\|placebo	1
Other\|Procedure	1

Site_count	Study_Count
1	454
2	27
3	10
4	13
5	8
6	11
7	11
8	5
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	1
17	1
18	1
19	1
20	1
22	2
23	3
24	3
25	1
26	3
28	3
29	1
30	3
31	4
32	1
33	1
34	3
35	3
36	1
37	2
38	1
39	3
41	2
42	2
43	3
44	1
45	3
49	1
56	1
59	1
60	2
63	1
65	1
66	2
71	1
74	2
80	1
121	1

Site_count	Study_Count
1	454
2	27
3	10
4	13
5	8
6	11
7	11
8	5
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	1
17	1
18	1
19	1
20	1
22	2
23	3
24	3
25	1
26	3
28	3
29	1
30	3
31	4
32	1
33	1
34	3
35	3
36	1
37	2
38	1
39	3
41	2
42	2
43	3
44	1
45	3
49	1
56	1
59	1
60	2
63	1
65	1
66	2
71	1
74	2
80	1
121	1

rhinitis, allergic

Study Counts

Studies over Time by Start Date

Interventional Trials

Intervention Type

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Studies by Country

Sites per Study

Phase

Number of Arms

Enrollment Metrics by Phase

Trial Group Type

Intervention Model

Primary Purpose

Observational Studies

Studies by Country

Sites per Study

Enrollment Metrics

Observation Model

Time Perspective

Registries

Studies by Country

Sites per Study

Enrollment Metrics

Registry Model

Time Perspective

Follow-up

Overview of Studies

Interventional Trials

Observational Studiess

Registries

Site_count	Study_Count
1	454
2	27
3	10
4	13
5	8
6	11
7	11
8	5
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	1
17	1
18	1
19	1
20	1
22	2
23	3
24	3
25	1
26	3
28	3
29	1
30	3
31	4
32	1
33	1
34	3
35	3
36	1
37	2
38	1
39	3
41	2
42	2
43	3
44	1
45	3
49	1
56	1
59	1
60	2
63	1
65	1
66	2
71	1
74	2
80	1
121	1